Method of making roofing



April 27, 1943. c sc 2,317,596

METHOD OF MAKING ROOFING Filed July 2O, 1951 frwezzifiz dlertdfisc/zer Patented Apr. 27, 1943 METHOD OF MAKING ROOFING Albert C. Fischer, Chicago, Ill., assignor to The Philip fiarey Manufacturing Company, a corporation of Ohio Application July 20, 1931, Serial No. 551,923

11 Claims.

This invention relates to novel and improved roofing units and the method of producing them, particularly pertaining to roofing rolls, slabs, individual shingles and the like, which are first formed into unitary pieces that are thereafter divided or separated in separate articles of manufacture and use.

The invention, generally described, relates to prepared roofing sheets comprising foundations of felt, paper or other fibrous sheets which are saturated with soft bituminous adhesives ranging from semi-liquid to semi-solid in character, and then coated on one or both sides with a layer of bituminous adhesive of harder character than the saturant. One side is usually surfaced with granular mineral material, such as crushed stone, slate or the like, partly embedded within the coating to provide a weather exposed face. The reverse or non-weather side of the sheet is coated with a tacky or lasting bituminous adhesive to provide a normally adhesive face by means of which another saturated and coated foundation sheet may be secured thereto in adhesive contact to produce a untary composite sheet. If a decorated design roofing is desired, one or both edges of the the composite sheet may be serrated to provide spaced tabs, or the composite sheet may be subdivided into individual shingles. However, in whatever form the composite sheet may be prepared, it is subsequently split or rolled apart along a medial plane to divide same into complementary sections of corresponding structure. The splitting of the composite sheet may be along a medial plane parallel to the face plane of the sheet to provide sections of uniform thickness, or it may be on a bias or diagonal plane to provide what is commonly termed taper shingles. I

This case is a continuation-in-part of my application Ser. No. 336,713, now matured into Patent No. 1,939,004, which is incorporated as a part of the disclosure of the instant case.

For a better understanding of the invention reference may be had to the accompanying drawing; in which:

Fig. 1 is a perspective view of a composite sheet rolled in a package roll;

Fig 2 is a perspective view of a modified form;

Fig. 3 is a perspective view of a composite sheet, having one edge serrated with spaced tabs;

Fig. 4 is a perspective view of an individual unit split along a medial plane to divide said unit into two individual shingles of uniform thickness; and

Fig. 5 is a perspective view of an individual unit split along a diagonal plane.

Referring to the drawing, strips la designate prepared roofing sheets of paper, fabric, roofing felt, or the like, each of which is preferably coated on one face with a layer of normally tacky adhesive material, and then superposed with the tacky adhesive faces in juxtaposition to form a composite or unitary sheet. This composite or unitary sheet may be advantageously rolled into a package roll D for convenient handling, and thereafter stripped apart into individual roofing sheets which are self-adhering to a roof structure or other surface to which they may be applied in laminated layers or in overlapping courses.

These roofing sheets may be of plain'and ordinary design, or they may be ornamental with decorated tabs formed along one or both edges of the sheet or sheets. Sheets 4 (Fig. 3) are of the same character as sheets la, and are also surfaced on one side with adhesive 2 whereby they may be adhered into a composite sheet and rolled into package D. One edge is serrated at intervals to provide a series of ornamental tabs 4a or any desired design.

The structure in Fig. 2 is substantially the same as that shown in Fig. l, with the exception that sheet 3 typifies aprotective sheet which may or may not be a roofing sheet or a component part thereof. It may be merely a thin sheet which is applied temporarily to the roofing sheet 3 to preserve the adhesive coating 2 in a normal ly tacky adhesive condition.

Figures 4 and 5 typify individual shingles or units into which the composite sheet of Fig. 1 may be divided. In Fig. 4 the unit or composite slab is stripped apart along a medial plane to divide same into separate and distinct individual shingles of uniform thickness. In Fig. 5, the unitary slab is also divided or rolled apart along a medial plane, but on a diagonal plane, to provide individual tapered shingles.

The weather exposed or non-adhesive faces of any of the individual shingles, slabs, roll roofing and the like, may preferably be coated with granular mineral materials, such as slate, stone or the like, partially embedded in the coating.

While I have shown several embodiments as illustrative of my invention, it will be understood that the invention is not limited thereto, and

that various deviations may be made without departing from the spirit and scope of the appended claims.

I claim:

I. The method of producing shingles tapering in thickness and having a felted fibrous foundation containing waterproofing material which comprises producing fibrous sheets of such material equal in area to that of a shingle and of a thickness substantially equal to the sum of the thicknesses of butt and thin ends of a desired shingle, and rolling apart said sheets along diagonal planes from end to end to produce two shingles from each.

2. The method of producing shingles tapering in thickness and having a felted fibrous foundation containing waterproofing material which comprises producing sheets of such material each equal in area to that of a shingle and of a substantially uniform thickness equal to the sum of the thicknesses of butt and thin ends of a desired shingle, rolling apart said sheets diagonally to produce two shingles from each, and coating with bituminous material the portions of the shingles exposed to the weather when laid.

3. The method of producing shingles tapering in thickness and having a felted fibrous foundation which comprises producing sheets each of a substantially uniform thickness equal to the sum of the thicknesses of butt and thin ends of the desired shingle, rolling apart said sheets diagonally to produce two shingles from each, coating the portions of a shingle exposed when laid with bituminous material, and embedding grit in said coating.

4. The method of producing. shingles char- I acterized by forming a sheet equal in thickness to. two or more of the shingles to be formed, subdividing the sheet into portions of the desired form, and separating the portions along a medial plane to produce individual shingle elements.

5. The method of producing roofing elements characterized by forming a sheet equal in thickness to two or more of the roofing elements to be formed, and rolling apart the sheets along a medial plane to produce separate roofing elements.

6. The method of producing roofing elements characterized by forming a sheet equal in thickness to two or more of the roofing elements to be formed, forming decorative tabs along one edge of the sheet, and separating the sheet along a metasdial plane to produce separate roofing elemen 7. The method of producing roofing elements characterized by forming a sheet equal "in thickness to two or more of the roofing elements to be formed, and separating the sheet along a diagonal plane to produce separate roofing ele ments of tapered design.

8. The method of producing-shingles tapering in thickness and having a felted fibrous foundation containing waterproofing material which comprises producing fibrous sheets of such material equal in area to that of a shingle and of a thickness substantially equal to the sum of the I thicknesses of butt and thin ends of a desired shingle, and separating said sheets along diagonal planes from end to end ,to produce two shingles from each.

, -9. The method of which comprises producing fibrous sheets of such material each equal in area to that of a shingle and oi a substantially uniform thickness equal to the sum of the thicknesses oi butt and thin when laid.

10. The method of in thickness and having a felted fibrous foundation which comprises producing sheets each of a substantially uniform thickness equal to the sum of the thicknesses of butt and thin ends of the desired shingle, separating said sheets diagonally to produce two shingles from each, coating the portions of a shingle exposed when laid with bituminous material, and embedding grit in said coating.

11. The method of producing roofing elements characterized by'forming a sheet equal in thickness to two or more of the roofing elements to be formed, and separating the sheet along a diagonal plane to produce separate roofing elements of tapered design.

ALBERT C. FISCHER.

I producing shingles tapering in thickness and having a'felted fibrous foundation containingv waterproofing material producing shingles tapering 

